<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>

      <el-row :gutter='20'>
        <el-col :span='8'>
          <!-- 搜索与添加区域 -->
          <el-input placeholder="请输入用户名" v-model="queryInfo.query" clearable @clear="getUserList()">
            <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span='4'>
          <el-button type='primary' @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data='userList' border stripe>
        <el-table-column type='index'></el-table-column>
        <el-table-column prop='username' label='姓名'></el-table-column>
        <el-table-column prop='email' label='邮箱'></el-table-column>
        <el-table-column prop='mobile' label='电话'></el-table-column>
        <el-table-column prop='role_name' label='角色'></el-table-column>

        <el-table-column prop='mg_state' label='状态'>
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" active-color="#409EFF" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>

        <el-table-column label='操作' width='180'>
          <template slot-scope='scope'>
            <!-- 修改按钮 -->
            <el-button size="mini" type="primary" icon="el-icon-edit" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button size="mini" type="danger" icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button size="mini" type="warning" icon="el-icon-setting" @click="showSetRoleDialogVisible(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination background @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model.number="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部区域 -->
      <span slot="footer" class="Ddialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 编辑用户的对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!-- 表单 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部按钮 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">

      <!-- 主体区域 -->
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <!-- 底部按钮 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 自定义校验规则
    // 验证邮箱
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/

      if (regEmail.test(value)) {
        // 合法的邮箱
        return callback()
      } callback(new Error('请输入合法的邮箱'))
    }
    // 验证手机号
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^(?:(?:\+|00)86)?1[3-9]\d{9}$/

      if (regMobile.test(value)) {
        // 合法的手机号
        return callback()
      }
      callback(new Error('请输入合法的手机号'))
    }

    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 每页显示数据条数
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在 3 到 10 个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码的长度在 6 到 15 个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 修改用户对话框
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入用户手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色数据列表
      rolesList: [],
      // 已选择的角色id值
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      this.userList = res.data.users
      this.total = res.data.total
      //   console.log(this.userList)
    },
    // 监听pagesize改变事件
    handleSizeChange(newSize) {
      // 每页显示的条数
      console.log(newSize + '条/页')
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变事件
    handleCurrentChange(newPage) {
      // 当前页码
      console.log('第', newPage, '页')
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关用户状态改变
    async userStateChanged(userinfo) {
      // console.log(userinfo)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      // console.log(res)
      if (res.meta.status !== 200) {
        // 操作失败将页面状态复位
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击确定按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async vaild => {
        // console.log(vaild) // bool
        if (!vaild) return 0
        // 发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)

        if (res.meta.status !== 201) return this.$message.error('添加用户失败！')

        this.$message.success('添加用户成功！')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户列表数据
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    async showEditDialog(id) {
      console.log('id', id)
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败！')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户对话框关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid)
        if (!valid) return 0
        // 发起用户信息修改的网络请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })

        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败！')
        // 1.关闭对话框
        this.editDialogVisible = false
        // 2.重新获取用户列表
        this.getUserList()
        // 3.提示信息
        this.$message.success('更新用户信息成功')
      })
    },
    // 根据id删除对应的用户
    async removeUserById(id) {
      // console.log(id)
      // 弹框提示用户是否删除
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
      // 如果用户点击确认按钮返回字符串'confirm'
      // 点击取消返回字符串'cancel'
      console.log(confirmResult)

      if (confirmResult !== 'confirm') return this.$message.info('已取消删除操作')

      // 发请求
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')

      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    // 显示分配角色对话框
    async showSetRoleDialogVisible(user) {
      // 获取角色信息
      this.userInfo = user
      // console.log(this.userInfo)
      // 获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')

      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 关闭分配角色对话框
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    },
    // 点击按钮分配新角色
    async saveRoleInfo() {
      if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色！')

      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('设置角色失败！')

      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>

<style lang="less" scoped>
</style>
